Method of winding armatures



R. H. SULLIVAN METHOD OF WIND ING ARMATURES Fil ed uach e, 1924 I I Fig.2 Fig.1.

ll nmemntam i Patented June 9, 1925.

UNITED STATES PATENT OFFICE.

RAYMOND H. SULLIVAN, OF ROCHESTER, NEW YORK, ASSIGNOR TO NORTH EAST ELECTRIC COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

METHOD OF WINDING ARMATURES.

Application filed March 6, 1924.

1 '0 all whom it may concern:

Be it known that I, RAYMOND H. SULLI- VAN, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Methods of \Vinding Armatures; and I do hereby declare the following to be a full, clear, and exact description of the invention. such as will enable other skilled in the art to which it appertains to make and use the same.

This invention relates to the winding of the slotted armatures of dynamo-electric machines, where the winding is of the lap type and the wire is wound directly in the slots.

In winding armatures of the kind in question it is customary to com lete each coil in turn, and toleave both ems or leads projecting at the commutator end of the core. these ends being soldered to the appropriate bars of the commutator" after all coils have been wound. Difiiculty is encouutcred, however, owing to the fact that many of the leads are covered by the coils, at the points where they issue from the slots, so that it is ditlicult to tell which is which and to distinguish between the beginning lead of one coil and the terminal lead of the other, since both emerge from the same slot.

The object of the present invention is to avoid the difficulty 'ust mentioned, and in other respects to facilitate and improve the winding operation, and to this end the in vcntion consists in the method hereinafter described.

In the accompanying drawings, F ig. 1 shows an armature upon which one coil has been wound: Fig. 2 shows an armature on Serial No. 697,344.

which all coils have been wound but the terminals have not yet been passed through the core: and Fig. 3 shows an armature in which the winding operations have been completed.

The novelty of this method resides in the fact that as each coil is wound its last end or terminal (3 is left, temporarily, projecting at the rear end of the core 7, as shown in F 1, until all of the coils have been wound. lll'iereafter, each terminal 6 is wrapped around, on the tops of the coils, to span the same number of slots as the body of the coil. (tour slots as shown), and the tern'iinal is then passed through the core to the connnutator-end. In this way, each terminal is left plainly visible and distinguishable from the other end or lead occupying the same slot, and the necessary connections may be made with the commutator without diiliculty or confusion.

Another :ulvantage of this method resides in the fact that during the winding operation only one hull. of the leads or ends project at each eudo'lf the core, and it is there fore easier to take care of them without getting them twisted or tangled.

The invention claimed is:

The method of winding an armature,

which consists in winding overlapping coils inthe armature-slots and leaving the terminal of each coil projecting at the rear end of the core until all coils have been wound: then drawing each such terminal around on top of all coils and through the appropriate slot to complete its respective coil and to bring the terminal into position for con nection with the commutator.

RAYMOND H. SULLIVAN. 

